Exercise 6-05 a-b (Video) Dorothy's Boards sells a snowboard, Xpert, that is popular with snowboard enthusiasts. Information relating to Dorothy's purchases of Xpert snowboards during September is shown below. During the same month, 121 Xpert snowboards were sold. Dorothy's uses a periodic inventory system Date Explanation Units Unit Cost Total Cost $ 2,470 Inventory $95 Sept. 1 26 4,590 Sept. 12 Purchases 45 102 Purchases 104 Sept. 19 20 2,080 5,250 50 Purchases Sept. 26 105 $14,390 141 Totals Compute the ending inventory at September 30 and cost of goods sold using the FIFO and LIFO methods. LIFO FIFO The ending inventory at September 30 $ $ Cost of goods sold $ $ For both FIFO and LIFO, calculate the sum of ending inventory and cost of goods sold FIFO LIFO The sum of ending inventory and cost of goods sold $ $